In December 2019 a novel coronavirus,named severe acute respiratory syndrome coronavirus 2 was identified and the disease associated was named coronavirus disea
BACKGROUND Renal cell carcinomas are usually unilateral.However,they are bilateral in 2%to 4%of sporadic cases and is considerably more common in familial cases
BACKGROUND Peripheral lung cancer poses a substantial harm to human health,and it is easy to become exacerbated,potentially threatening the life and safety of p